Checking The Water Pump; Assembling The Water Pump - Yamaha YZF-R1(B) 2012 Service Manual

EAS26520
DISASSEMBLING THE WATER PUMP
1. Remove:
• Water pump seal "1"
TIP
Remove the water pump seal from the inside
of the water pump housing "2".
2. Remove:
• Oil seal "1"
(with a thin, flat-head screwdriver)
TIP
Remove the oil seal from the inside of the
water pump housing "2".
3. Remove:
• Rubber damper holder "1"
• Rubber damper "2"
(with a thin, flat-head screwdriver)
TIP
Do not scratch the impeller shaft.
EAS26540

CHECKING THE WATER PUMP

1. Check:
• Water pump housing cover "1"
• Impeller shaft "2"
Cracks/damage/wear → Replace.
• Water pump housing "3"
Cracks/damage/wear → Replace the oil/
water pump assembly.
EAS26560

ASSEMBLING THE WATER PUMP

1. Install:
• Oil seal "1"
(into the water pump housing "2")
Installed depth "a"
17.2 mm (0.68 in)
TIP
• Before installing the oil seal, apply tap water
or coolant onto its out surface.
• Install the oil seal with a socket that matches
its outside diameter.
2. Install:
• Water pump seal "1"
ECA14080
Never lubricate the water pump seal sur-
face with oil or grease.
TIP
• Install the water pump seal "1" with the spe-
cial tools.
6-13
WATER PUMP
New
New